Sripal Bangalore1, Lee Schwamm2, Eric E Smith3, Anne S Hellkamp4, Robert E Suter5, Ying Xian6, Phillip J Schulte4, Gregg C Fonarow7, Deepak L Bhatt8. 1. Cardiovascular Outcomes Group, The Leon H. Charney Division of Cardiology, Cardiovascular Clinical Research Center, New York University School of Medicine, 530 First Avenue, New York, NY 10016, USA. 2. Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA. 3. Hotchkiss Brain Institute, University of Calgary, 3330 Hospital Drive NW, Alberta T2N 4N1, Canada. 4. Duke Clinical Research Institute, 2400 Pratt St, Durham, NC 27705, USA. 5. American Heart Association, University of Texas Southwestern, 5323 Harry Hines Blvd, Dallas, TX 75390, USA. 6. Department of Neurology, Duke University Medical Center, 2400 Pratt Street, Durham, NC 27705, USA. 7. Ahmanson-UCLA Cardiomyopathy Center, 100 Medical Plaza Driveway, Los Angeles, CA 90095, USA. 8. Brigham and Women's Hospital Heart & Vascular Center, Harvard Medical School, 75 Francis Street, Boston 02115, MA, USA.
Abstract
AIMS: Post-stroke hypertension is associated with poor short-term outcome, although the results have been conflicting. Our objective was to evaluate the association of blood pressure (BP) and in-hospital outcomes in patients with acute ischaemic stroke. METHODS AND RESULTS: Patients in the Get With The Guidelines-Stroke registry with acute ischaemic stroke were included. Admission systolic and diastolic BP was used to compute mean arterial pressure (MAP) and pulse pressure (PP). The outcomes of interest were: in-hospital mortality, not discharged home, inability to ambulate independently at discharge and haemorrhagic complications due to thrombolytic therapy. A total of 309 611 patients with an ischaemic stroke were included. There was a J-shaped/U-shaped relationship between systolic BP and outcomes. Both lower and higher systolic BP values, compared with a central reference value, had higher risk of in-hospital death [e.g. adjusted odds ratio (95% confidence interval) (OR[CI]) = 1.16[1.13-1.20] for 120 vs. 150 mmHg and 1.24[1.19-1.30] for 200 vs. 150 mmHg], not discharged home (OR[CI] = 1.11[1.09-1.13] for 120 vs. 150 mmHg and 1.15[1.12-1.18] for 200 vs. 150 mmHg), inability to ambulate independently at discharge (OR[CI] = 1.16[1.13-1.18] for 120 vs. 150 mmHg and 1.09[1.06-1.11] for 200 vs. 150 mmHg). However, risk of haemorrhagic complications of thrombolytic therapy was lower with lower systolic BP (OR[CI] = 0.89[0.83-0.97] for 120 vs. 150 mmHg), while higher with higher systolic BP (OR[CI] = 1.21[1.11-1.32] for 200 vs. 150 mmHg). The results were largely similar for admission diastolic BP, MAP, and PP. CONCLUSION: In patients hospitalized with ischaemic stroke, J-shaped, or U-shaped relationships were observed between BP variables and short-term outcomes. However, haemorrhagic complications with thrombolytic therapy were lower with lower BP. Published on behalf of the European Society of Cardiology. All rights reserved.
AIMS: Post-stroke hypertension is associated with poor short-term outcome, although the results have been conflicting. Our objective was to evaluate the association of blood pressure (BP) and in-hospital outcomes in patients with acute ischaemic stroke. METHODS AND RESULTS: Patients in the Get With The Guidelines-Stroke registry with acute ischaemic stroke were included. Admission systolic and diastolic BP was used to compute mean arterial pressure (MAP) and pulse pressure (PP). The outcomes of interest were: in-hospital mortality, not discharged home, inability to ambulate independently at discharge and haemorrhagic complications due to thrombolytic therapy. A total of 309 611 patients with an ischaemic stroke were included. There was a J-shaped/U-shaped relationship between systolic BP and outcomes. Both lower and higher systolic BP values, compared with a central reference value, had higher risk of in-hospital death [e.g. adjusted odds ratio (95% confidence interval) (OR[CI]) = 1.16[1.13-1.20] for 120 vs. 150 mmHg and 1.24[1.19-1.30] for 200 vs. 150 mmHg], not discharged home (OR[CI] = 1.11[1.09-1.13] for 120 vs. 150 mmHg and 1.15[1.12-1.18] for 200 vs. 150 mmHg), inability to ambulate independently at discharge (OR[CI] = 1.16[1.13-1.18] for 120 vs. 150 mmHg and 1.09[1.06-1.11] for 200 vs. 150 mmHg). However, risk of haemorrhagic complications of thrombolytic therapy was lower with lower systolic BP (OR[CI] = 0.89[0.83-0.97] for 120 vs. 150 mmHg), while higher with higher systolic BP (OR[CI] = 1.21[1.11-1.32] for 200 vs. 150 mmHg). The results were largely similar for admission diastolic BP, MAP, and PP. CONCLUSION: In patients hospitalized with ischaemic stroke, J-shaped, or U-shaped relationships were observed between BP variables and short-term outcomes. However, haemorrhagic complications with thrombolytic therapy were lower with lower BP. Published on behalf of the European Society of Cardiology. All rights reserved.
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